Healthcare Bed Prism Spectacles the Bucket List Prism Glasses, Prism Eye Glasses,universal,myopia Usable If you have it, you can comfortably enjoy your favorite TV programs, magazines and books while lying flat in bed or sofa.If you want to make your body more healthy, if want your families,friends or lover more healthy, you can also order this prism glasses for them when you order for yourself let you feel the fun and happiness! Kindly note: 1)At the beginning ,you may feel giddy when wear it, this is normal phenomenon. Because this glasses is designed according to the standard interpupillary distance, if feel dizzy,it is your interpupillary distance is smaller or larger, it is suggested that try to wear then will adapt it; 2)if the subtitles or TV sreen is too small,it will appear unclear; 3) wear glasses each time for 30-60 minutes,then to rest for 15 minutes.it"s better for your eyes.